stretch@EMUNIX.EMICH.EDU (Brian Stretch) (10/25/90)
I've got a STB Powergraph 1meg TSENG4000 video card.. running it on my
Deico 386SX-16/20 motherboard. Vidspeed 2.2 clocks it at 1810 bytes/msec..
it should be getting well over 5000 (Landmark 2.0 uses the same scale.)
The current theory is that the TSENG boards are real picky about AT bus
i/o wait states.. the Deico board (VIA chipset) uses 4 or 6 wait states
(ugh!), while at least one person on CompuServe's GRAPHSUPPORT forum
recommends 2 on his C&T motherboard. It's theory, tho, not proven yet.
An ATI Wonder 512K card got within a couple hundred bytes/msec of my
PowerGraph, when the PGraph should have blown it away.
Techs at STB and Deicoare stumped.. and Deico won't return calls to
me or STB. (The puppies..)
Anyone got any ideas? Seen this before? (STB has had similar problems with
an old Dell 386DX-20, strange thing is that all 286's we tested worked
fine). I've got 4 megs of 1megx9-80ns SIMMs in my machine (using page-mode
interleave, Landmarks at 23.?Mhz).. the PowerGraph has 1meg of 80ns
Micron Technologies 256Kx4's.
---Brian Stretch (stretch@emunix.emich.edu)